// This code is derived from jcifs smb client library <jcifs at samba dot org>
// Ported by J. Arturo <webmaster at komodosoft dot net>
//  
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
namespace SharpCifs.Smb
{
    internal class TransactNamedPipeOutputStream : SmbFileOutputStream
    {
        private string _path;

        private SmbNamedPipe _pipe;

        private byte[] _tmp = new byte[1];

        private bool _dcePipe;

        /// <exception cref="System.IO.IOException"></exception>
        internal TransactNamedPipeOutputStream(SmbNamedPipe pipe)
            : base(pipe, false, (pipe.PipeType & unchecked((int)(0xFFFF00FF))) | SmbFile.OExcl)
        {
            this._pipe = pipe;
            _dcePipe = (pipe.PipeType & SmbNamedPipe.PipeTypeDceTransact)
                            == SmbNamedPipe.PipeTypeDceTransact;
            _path = pipe.Unc;
        }

        /// <exception cref="System.IO.IOException"></exception>
        public override void Close()
        {
            _pipe.Close();
        }

        /// <exception cref="System.IO.IOException"></exception>
        public override void Write(int b)
        {
            _tmp[0] = unchecked((byte)b);
            Write(_tmp, 0, 1);
        }

        /// <exception cref="System.IO.IOException"></exception>
        public override void Write(byte[] b)
        {
            Write(b, 0, b.Length);
        }

        /// <exception cref="System.IO.IOException"></exception>
        public override void Write(byte[] b, int off, int len)
        {
            if (len < 0)
            {
                len = 0;
            }
            if ((_pipe.PipeType & SmbNamedPipe.PipeTypeCall) == SmbNamedPipe.PipeTypeCall)
            {
                _pipe.Send(new TransWaitNamedPipe(_path),
                           new TransWaitNamedPipeResponse());
                _pipe.Send(new TransCallNamedPipe(_path, b, off, len),
                           new TransCallNamedPipeResponse(_pipe));
            }
            else
            {
                if ((_pipe.PipeType & SmbNamedPipe.PipeTypeTransact)
                        == SmbNamedPipe.PipeTypeTransact)
                {
                    EnsureOpen();
                    TransTransactNamedPipe req
                        = new TransTransactNamedPipe(_pipe.Fid, b, off, len);
                    if (_dcePipe)
                    {
                        req.MaxDataCount = 1024;
                    }
                    _pipe.Send(req, new TransTransactNamedPipeResponse(_pipe));
                }
            }
        }
    }
}
